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EWG's Tap Water Database — 2019 UPDATE

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Ethylbenzene

City of Santa Barbara Water Department

Ethylbenzene, a component of petroleum, is a volatile cancer-causing chemical primarily used for production of plastics and rubber. Ethylbenzene is also released from gasoline fuel emissions. Read More.

In animal studies, exposure to ethylbenzene causes tumors. Ethylbenzene can also damage lungs, liver, kidneys and the nervous system. The International Agency for Research on Cancer classifies ethylbenzene as “possibly carcinogenic to humans.”

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
20130.403 ppb42ND - 0.950 ppb
2014ND40ND
2015ND20ND
2016ND20ND
2017ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 300 ppb

The EWG Health Guideline of 300 ppb for ethylbenzene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 700 ppb

The legal limit for ethylbenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1950s.

ppb = parts per billion

All test results

Date Lab ID Result
2012-07-189590-005-0923ND
2013-04-299590-053-0947ND
2013-08-029590-005-08590.950 ppb
2013-08-189590-031-1605ND
2013-10-079590-022-12150.660 ppb
2014-10-219590-042-0758ND
2014-10-219590-035-0931ND
2014-10-219590-015-0843ND
2014-10-229590-004-1014ND
2015-05-129590-055-0842ND
2015-11-109590-005-1050ND
2016-11-029590-053-1152ND
2016-11-029590-031-1120ND
2017-05-189590-058-1734ND
2017-11-079590-004-0955ND
2017-11-149590-042-0848ND
2017-11-149590-035-0930ND